高炉用温差自力式调节阀的特性

高炉寿命对炼铁生产技术经济指标有很大影响，而高炉各部位冷却器的冷却状况又极大地影响着高炉寿命。长期以来国内外高炉都是以恒流量供水冷却方式冷却，冷却强度无法满足热负荷峰值时的需要，同时还会造成冷却水供量缺乏均衡和稳定，以致冷却器易烧坏，高炉寿命降低。为改变此种状况，作者提出采用温差自力式调节阀使高炉冷却设备由恒流量供水冷却改为恒温差供水冷却方式，满足高炉冷却在热负荷峰值时对冷却强度的需要，使高炉冷却壁不致烧坏，从而延长高炉寿命。文中针对温差自力式调节阀的原理及结构，特点及作用进行了阐述，并对温差自力式谳节阀的水流量与水温差的关系进行了实验测定。

Properties of Temperature Difference Self-power Adjusting Valve Used in Blast Furnace

Blast furnace campaign life has a great effect on technical and economical indexes of ironmaking production. Cooling condition and life-span of cooling apparatus have a great influence on campaign life of blast furnace. Owing to constant flux water supply used for blast furnace cooling at present, cooling intensity doesn't meet the demand of heat load in peak value, concurrently, cooling water supply lacks equilibrium and stability, which will cause burnout of cooling apparatus and diminution of blast furnace campaign life. So temperature difference self-power adjusting valve is introduced to make BF cooling apparatus change constant flux water supply mode to constant temperature difference water supply mode in order to satisfy the need of cooling intensity when heat load wis in peak value.Principle, structure ,properties and function of temperature difference self-power adjusting valve are explained. The flux in different temperature is measured.